Tube-machine.



PATENTED AUG. 6, 1907'.

J. R. HARBEGK. TUBE MACHINE.

APPLIGATION FILED Nov. s, 190s.

7 SHEETS--SHEET 1.

PATENTBD AUG. 6, '1907.'

J. R. HARBEGK.

TUBE MACHINE.

APPLIOATION'HLED Nov. s, 190e.

7 SHEETS-SHBT 2.

Si MQ mk u M R f ww we M. 5W W PATENTED AUG. e, 1907.

J. R. HARBBCK.

TUBE MACHINE.

APPLIOATION FILED Nov. s, 1906.

7 SHEETS-SHEET 3.

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MQ n i .llllll No. 862,390. PATENTED AUG. 6, 1907.

J. R: HARBEGK.

TUBEA MACHINE.

APPLIGATION FILED Nov. e. 190e.

7 SHEETS-SHEET 4.

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i, l Wma/@MMM No. 862,390. PATBNTBD AUG. 6, 1907.

J. R. HARBBGK.'

TUBE MACHINE.

APPLIOATION FILED Nov. s, 190e.

7 SHEETS--SHEET 5.

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J. R. HARBEGK. TUBE MACHINE.

APPLIOATION FILED Nov. a. 1906.

7 SHEETS-SHEET 6.

PATENT-ED AUG. 6, 1907.

J. R. HARBBGK.

TUBE MACHINE.

APPLIOATION FILED Nov. a, 1906.

7 SHEETS-SHEET 7.

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UNITED STATES PATEN .omen

.IERVIS R.v HARBECK, OF DETROIT, MICHIGAN', ASSIGNOR TO KEMIWELD CANCOMPANY, OF

DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

TUBE-MACHINE.

specification of Letters' Patent.

Patented Aug. 6, 1907.

Application filed November 3,1906. Serial No. 342,471.

To all whom 'it may concern:

Be it known that I, J ERvrs R. HnRBncK, a citizen of the United States,and a resident "of Detroit, in the county of Wayne and State ofMichigan, have invented a new and useful Tube-Machine, of which thefollowing is a specification.

invention relates to machines for forming tubes by convolutely windingstrips of paper or other fibrous material coated with cement upon amandrel, and the object of my improvements is ;`-to provide la machineof this kind that shall be speedy and exact; that shall accurately windla strip of glue covered material upon a mandrel and then slip the tubethus formed off the mandrel; and that shall be practically automatic inits operation.

My invention consistsl in a novel hollow mandrel upon which the tubeforming strip of paper may be wound, the mandrel being provided withlateral open` ings, over which the end of the strip is laid, so thatwhen the valve in a suction pipe of an air pump is opened, the stripofpaper. will be held on the mandrel.

My invention also consists of a novel automatic mechanism which windsthe paper on the mandrel, cuts it off, rolls the end of the strip down,removes the tube thus formed, and then feeds out a fresh lengthof paperof suficient length to reach over the mandrel.

My invention further consists of novel mechanism for feeding the paperto the mandrel, which consists of a pair of rolls normally separated topermitthe man'- drel to ,pull out as much paper as necessary, and inmeans to control the engagement of the rolls with the tube material soas to feed it to the mandrel.

My invention further consists in the novel details.

described in the following ldescription and particularly specified inthe claims.

In the accompanying drawings, Figure 1 is a side view ofthe entiremachine. Fig. 2 is a plan thereof, a portion of the paper support beingbroken away for the sake of clearness. Fig. 3 is afront view of themachine Fig. 4 is a side view of the tube-winding portion of themachinery on the same scale.A Fig. 5 is a view from the opposite side ofthe cutoff mechanism, and Fig. 6 is a central cross'section of the same.Fig. 7 is an end view of the main driving cylinder. Fig. 8 is a sideview of the same. Fig. 9 is a cross section of the same on the line 9.-9of Fig. 10. Fig. l0 is a plan of the same. Fig. l1 is a longitudinalsection of the valve to control the air on the line 11-11 of Fig. 12. AFig. 12 is a vertical cross section of the same on the 1in@ 12F-12 ofFig. 11. Eig. 13 is a longitudinal cross section of thewinding mandreland sleeve. Fig. 14 is a cross section of the same on the line 14-14 ofFig. 13. Figs. 15, 16, and 21 are details of the paper feed. Figs. 17,18, and 19 are details of winding mandrels. Fig.` 20 is a sideA vview ofthe paper tension device. l

Similar reference characters refer to like parts throughout the severalviews.

This tube machine is made up of a mainframe upon which may be supporteda spool of paper or other material of which the tubes are to be-made.The machine is. composed of means to coat the strips of the tubematerial with glue or other cement; means to insure constaut tension onthe material and at the same time, prevent excess of tension; means towind this strip of material into a tube, and then discharge it from themachine; and means to feed thisstrip to the winding mechanism and to cutit off when the proper length has been wound.

The coating rrnechar'mlsm. The frame of the machine is composed of bed 1and the legs 2, the bed being of any desired height and preferablylevel. To the top are secured hangers 3, in which is mounted a shaft 4to support the roll 5 of the material from which the tubes are to bemade. Mounted on the bed is the mechanism for coating the material withglue or other cement, and is built up of areceptacle 6 for the cement inwhich is mounted the large cylinder` 7, which dips down into the liquidglue. This cylinder is mounted `on the pivot screws 8 which pass throughthe walls of the receptacle. A shaft 9 passes through lugs 10 at eachend of the receptacle and on the ends of these shafts are secured thearms l1, which arms have rollers 12 mounted between their outer ends.The positions of the arms are determined by the set screws 13, asshownin Fig. 1.` The glueiin the receptacle 6 may be kept hot by anydesirable heating apparatus 14. In using this apparatus, the strip orband A of tube material passes upward from the roll 5 over the roller 15carried by the shaft 16, that extends between, the frames 17 on thebed 1. One of these is omitted from Fig. l. From here the band A passesto the rear over the cylinder 7 and in its movement turns this cylinderso that it will move through 'the glue and carry a thin uniform coat ofit against 4the strip which is held against this cylinder 7, by

means of rollersl2.

The tension mechanism. The band A passes from the rear roll 12, betweenthe feed rollers 18 and 19, down and around the roll 20 Whichis mountedon the shaft 21. This shaft is carried by the two chains 22 which passaround the chain wheels 23 and-'24. The paper passes from the roller 20to the roller 25, loosely mounted on roll 15. It is also very desirablethat the paper move through the glue applying mechanism at a constantframes 28 and 29 and carries a gear 37 which meshes with another gear38, on the shaft 39'. Auxiliary brackets 40 and 41 project upwards fromthe-brackets 30 and 31 and in them is mounted a slidable rod 42 whichcarries a fork 43. l The chain wheels 24 are secured to the shaft 26which has a small gear 45 mounted on its outer end, which gear mesheswith the rack 46 on the rod 42. The upper and lower rollers 18 and' 19are geared together at the end opposite the gear 38.

The operation of this mechanism is as follows. The weight of the roll 20normally keeps it at the position shown in Fig. 20. The position of thefriction wheel 34 will be ,controlled by the position of the roller 20.If

too great a demand of the tube material occurs Athan can be supplied bythe rollers 18 and 19, at their speed at that time, the roller 20 willbe raised, which movement will move the chains 22 and with them thechain wheels 23 and 24. The revolution of the chain wheels 24 to theright, Fig. 2O will push the rod 42 to the left and with the rod thefriction wheel 34 will be moved toward the center of the disk 35. Thebelt 48 on the pulley 33 has a constant speed given it by a countershaft and there' fore the `friction wheel 34 has a constant speed. .Thespeed of the friction disk 35 will therefore increase or decreaseaccording as the wheel 34 moves toward and from the center of this disk.As before stated, the feed rollers 18 and 19 are driven by this frictiondisk 35, and their speed will therefore be increased by the rising ofthe roller 20 and be decreased by its falling. Any sudden increase indemand for tube material will be met by the roller 20 rising under thepull on the band A, which in turn will cause the feed rollers 18 and 19to supply the extra demand. When the demand for material ceasesentirely, the roller 20 will, of course, reach its lower position,whenthe friction wheel 34 will be entirely out of contact with the disk35, as shown n'Fig. 20. This particular part of the mechanism preventsthe gummed face of the band A from reaching the floor because the feedrollers 18 and 19 will stop before'such time and with them the movementof the band A. The paper as it leaves the tension mechanism, passesalong over the table 27 and roller 50 with its coated side upward, tothe shears, and from them to the winding mechanism.

The unding mechanism. Secured-to the under side of the table arebearings for the driving shaft 51, which has on its outer end, tight andloose pulleys 52 and 53, and intermediate its ends, has mounted upon ita gear 54 Iwhich meshes with the gear 55 upon the main shaft 56. Thismain shaft 56 makes one revolution for each tube formed by the machine,and eachfrevolution constitutes a complete cycle of Voperation of themachine. The steps taken by the mechanism at this end of the machineareas follows,-1st. The feed rollers extend a strip of paper to themandrel. 2nd. The mandrel sucks this paper to it and* winds it uponitself the predetermined number of turns and then stops. 3rd. Th`eshears cut the strip. 4th. The mandrel makes a predetermined number ofrevolutions during'which time the paper on it is engaged by presserleaves for the purpose of insuring the gumming down of the end of thestrip,

'whereupon the mandrel stops 5th. A sleeve on the mandrel pushes off thecompleted tube. The mechanism for performing these various steps iscontrolled, by the' gear 55 and the drum 57.

The gear '55 has teeth extending entirely across its face for a portiononly of its circumference, so that while it is constantly revolvingunder the action of the pinion 54, the pinion 58 whichmeshes with thegear 55, and

the shaft 59 upon which this pinion is mounted, will have intermittentmovement. In the machine shown in the drawings, this shaft '59 will havetwo periods of l ered to bemade up of two gears joined, one of whichwith teeth entirely around the circumference and the other with teethvin two separatedgroups, as shown in Fig. 9. The group 60 is designed toturn the mandrel to wind the strip of paper onto the same. While thespace 61 is passing the pinion 58, the shears cut off the paper. thewheel 58 one revolution during which time the presser leaves smooth downthe last end of the paper on the mandrel. The space 63 will pass thewheel' 58 during the time that the sleeve on the mandrel pushes off thecompleted tube and during the time that the forward end of the tubematerial is fed for-ward to the mandrel.

The end of the drum 57 towards the gear 55 is formed with grooves ordepressions which are adapted to receive -the rollers 64 and 65, mountedon arms 66 and 67 secured to the outer end of the shaft 59. Referring toFig. 9 especially and consider the shaft 59 at rest, and the drum 57revolving toward the right, it will be noticed that the roller 65 hasbeen traveling along in a groove 68 in the side of the drum, while theroller 64 has been riding upon the portion 69 of the face thus holdingthe shaft 59 stationary. When the rib 70 on the side of the drum strikesthe roller 65, the shaft 59 will be set in motion and as the leverradius of the point of contact between the roller 65 and the rib 70decreases, the shaft 59 will revolve more rapidly until finally theteeth of the gear 58 will travel at about the same speed 'as the teeth60, when they engage the same. As will be seen in Fig. 9 the side of thedrum is cut away immediately succeeding the rib 70 and up to the rib 71.The number of teeth of the pinion 58 and of the group of teeth 60 issuch that the roller 65 will pass down into the groove' or guide way 72,while the roller 64 will ride on the face aty 73, thus holding the gear58 and the shaft 59 stationary until the roller 65 contacts with 'thethird rib 74, whereupon the arms 66 and 67 will again act to turn theshaft, and the group of teeth 62 will act to turn the shaft 59 onerevolution. Next the roller 65 will The group of teeth 62 is designed tothen turn again enter the groove 68 and at the close of the revolutionof the drum, all parts will be at the position shown in Fig. 9.

The shaft 59 is journaled in the standards 75 and 76, and has secured toit the gear 77 which meshes with the gear 78 on the hollow shaft 79.This shaft is revolubly mounted in the standard 76 and also inthestandard80, and is adapted to revolve three times with` each revolutionof the'shaft 59. Its outer end is provided with a series of openings(see Fig. 13), to connect the bore with the inside of the hollow mandrel81 upon which the tubes are wound. This mandrel may have any desiredcross section.y .The mandrel 81 is firmly secured on the-hollowshaft'79, being held in place by the screw 82, engaging in the end ofthe shaft. The end of the shaft 79 revolvesi'n an elbow 83 which issupported by. an arm 84 projecting from the standard 80. The pipe 85-connects to the valve86 which is shown `'in details in Figs. 11 and 12.As there shown, the

shaft 56 has a longitudinal bore 87 and a vertical bore 88. A tube 89connects this valve to the air pump 90 which is driven by the, belt 91from the same-countershaft that drives the machine. lt will be seen thatthe suction of the air pump will act through the pipes 89 and 85 andthrough the hollow shaft 79, the holes 80 in the same, and the holes 92in the mandrel 'during the short time that the bore 88 in the shaft 56registers with the bore of the pipe 85. The suction through the hole 92in the mandel will occur` just at the beginning of the windingrevolutions of the mandrel, that is just about' at the time thatthe'parts are in the position shownin Fig. 9. The continuedrotation ofthe shaft 56 will cause the strip of paper to be lwound on the mandrel,

the suction of the air pump holding the en d of the paper' strip sofirmly against the mandrel that the entire strip can be pulled alongover the table 27 and around the tension device. I This suction will.continue during practically the entire time that the tube material isbeing wound on to the mandrel and ceases just before the rotation of theshaft 79 ends.

The feeding and shearing mechant-sm. Mounted between the mandrel 81andthe frames 17 is the combined v feed and cutting mechanism which is moreclearly shown in Figs. 4, 5, and 6. On the base 95, which is secured tothe bed l, are adjustably mounted the side plates 96, which areconnected by a cross bar 97.v These parts'96 and 97-form a frame whichis movable toward and from the mandrel, and because of the incline ofthe upper face of the base, the cutting line of the shears will rise asthe frame is moved away from the mandrel lto accommodate tubes of largerdiameters. Shafts 98 and 99 are geared together at their outer ends andcarry rollers 100 and 101. As the upper roller 100 engages the coatedside of the paper strip. it is preferably grooved to facilitatedisengagement from the sticky side of the paper, while the roller 101 ispreferably of india rubber vertically movable rods 113. These rods areconnected across by the lower member 114 of the shear, the-upper member115 being secured ,to the cross' bar 97 of the frame. Byv .these meansat each revolution of the drum, the cam' 102 will actuate Athe shear tocut off the strip of paper.`

Pivoted to the outer vsides of the frames 96 are 'small leversl 164, theouter. ends ofwhich are normally engaged by pins 165 on the uprightlrods 113, while the inner ends of .the levers are under a portion ofthe bearings of the shaft 98 of the upper feed ro1l-100. Spring 1'16extends between the lever- 109 and the bed of the machine and normallyholds down these rods and vat the same timeholds the rollers .100 and101 apart. These feed rolls are normally separated in order to permitthe mandrel to wind up as much paperas necessary with the least amountof friction. Springs 116 tend to hold up the bearings of the shaft 98..IIt will be noticed that the cam 102 is of such form that during aportion of the revolution of the shaft 56, therollers 100 and 101 will,be held separated by means of thesespringswhich period' corresponds tothe winding of the tubes and that during theremainder of the revolutionof the shaft 56, the rolls will be in contact with the paper. y

The shafts 98 and 99 are geared together at the ends 90 shown in Fig. 4.On tlie opposite end of the shaft 99 is secured an arm 117 which carriesa pawl 118 t0 engage the teeth of the ratchet wheel 119'. 'This ratchetwheel is secured to a sleeve 120 loose outhe shaft 9 9, to which sleeveis also secured a gear 121 which meshes with a rack 122 (see Figs. 15and 16). It will be seen that the reciprocating longitudinal movementsof this rack 122 will cause a rotationin opposite directions of the gear121 and the ratchet wheel 119 and the driving in a constant direction ofthis roll 101 at. each down?A 100 wardly movement of the rack, the pawl118 permitting the ratchet wheel to run freely in the oppositedirection. f Mounted on the hub of the ratchet wheel 119 is the guide123 for the rack 122, which guide is adapted to 4105 adjust itself to`any angle to the vertical the, rack may assume. See Figs. 5and 16. Thelower end of the rack connects to the arm 125 which is secured to theshaft 126. This shaft is mounted on bearings 127 bcp neath the bed andhas at its inner end, a second arri 110 128 provided with a roller 129.At each revolution of the gear 55 a block 130, (ses Fig. l4.), securedto the gear, contacts with this roller 129, causing the shaft V126 toturn and the rack 122 tmove downward, thereby actuating the feedrollers. As the centers of movement l 1 5 of the rollers 129 and theblock 130 are separated', the

vcontact of these two will lastfor about one twelfth of employed. On thebed are secured bearings 135 and 125 I 136 in which is mounted a shaft137 provided with an arm 138. On the end of this arm is mounted a roller139 which runs on a cam ring 140, secured to the side of the gear 55.This cam ring has one depre'ssedportion shown at its upper side in Fig.4.. Mounted on the bed is a frame 140, provided with horizontallyextended i arms 4141 in which 'are mounted the 'presser leaves 142.

These leaves are provided withrods 148 secured to lugs 144 formed on theleaves, between which rods springs 145 extend. Shoulders 14'6 are formedon the inner sides of these presser leaves and are adapted to be engagedby the roller 147 carriedin theouter ends ofthe arms 148, which arms aresecured to the shalt 137 The action of this portion of the machine risas follows. The l rdller 147 is normally held 'between tlreshoulders 146by wheel 139 to drop, causing the roll 147-to move hom,`

between the shoulders 146 and permitting the presser leaves 142 toclose. The Hat outer ends of the leaves will press on the tube wound onthe mandrel and thus insure the 'end of the paper being 'smoothlycemented down. When the cam 140 lifts the wheel 1.89, the leaves willseparate.

@schargvng mechanism. To remove the finished tube from the mandrel afterthe presser leaves -operate and again open, l provide asleeve 150 whichis slidable over the mandrel and 'o'n the hollow shaft 79. This sleeveis provided with a groove 151 in which a fork 152 is adapted to engage,(see Figs. 13 and 14). This fork is secured to a slidable rod 153 whichis mounted in the standards 76 and 80. Secured to this rod is a groovedcollar 154 into which the upper end off the piv- Aoted lever 155 'isadapted to` engage. The lower end oi thisl'ever 'is pivoted to '-abracket 156 and the pin 157 is :adapted to be "engaged by the 'cams 158and 159, secured to the face oi the -dru-m 57. A-iter the presser leaveshave operated to insure the 'cement of the end of the paper strip 'tothe remainder o the tu'be, the revolutions of the mandrel stop and thecam 158 will engage the pin 157, 'forcing over' the iever 155 and alsoforcing the sleeve l5() outward. The outward movement 'of the. sleevewill 'push the tube of the mandrel. lAs it may .very loften happen, thatthe inner edge of this tube is sticky and therefore liable to attachitself to the outer edge ot` th'e sleeve 150, provide springs 160 (seeFig. 8)-, which springs are adapted to be pressed inwardly by the tubeas it 'passes over the same and spring out immediately after the 'tubehas passed, thus preventing 'the tube being pulled back on to themandrel by means It will be noted that the cam 159 immeposition.

@poration of the macht/rte. The operation of the machine is as follows-,The prop-er roll 5 of tube material having been selected, it is elevatedto a position between the arms 3, and the shaft 4 passed through thesame.

The glue in the receptacle 6 having been properly heated, the band A ispassed up over the roller below the rollers 12 and over the cylinder 7and on through between the leed rollers 18 and 19. The rollers 12 arethen adjusted so that the band A wili'be properly pressed against thecylinder '7. The band A is further unrolled and passed down around theroller 20 over the rollers and 50 and forward between the feed 'rollers100 and 101, and between the shears 114 and 115.

the counter-shaft drive the air-pump 90, tight pulley '52 and sha-ft 51,and thereby the main gear 55 and drum '57, and also the pulley 33 andsha-ft 32. The first portion of the revolution of the drum will serve toactuate the arm 128, the shaft 126, the arm 125 and the rack 122 tocause the feed rolls 100 and 101 to feed forward the paper strip so thatthe end will rest over the holes 92 in the mandrel. When this movementhas,

been completed,lthe block 130 secured to the face of the vgear willdisengage from the roller 129 permitting the spring 131 to return theseparts to the -normal position. .T ust about the time that the roller 129:and the block 130 disengage, the shaft 56 will have reached such aposition that the bores 87 and 88 in its inner end wil1-open the passagefrom the air pump 90 to the bore ofthe sha-*it 79 and opening 92 intothe mandrel, which will permit the suction of the pump to firmly holdthe end of the paper against the mandrel. About this instant, the rib 70on the end of the drum begins to operate the arms 67 on the shaft 59,wheren upon the shaft 79 begins its nine revolutions. Just before thecompletion of these revolutions the rotation of the shaft 56 will besuch that the passage from the pipe 89 to the pipe 85 will be closed.After the shaft 79 has stopped, the cam 1.02 will engage the roller 103to operate the shear and to cutoff the paper. This occurs during theinterval between the groups of teeth and 62. When the teeth 62 cause therotation of the mandrel, the arm 138 is falling because of the depressedportion of the Acam ring 140 will permit the presser leaves 1,42 tosmooth down and insure the cementing of 'the end of the band 'of thepaper. The next movement will be to raise the arm 138 and the separationof the presserleaves 142 which is immediately followed by thelongitudinal movement of the sleeve 150 to eject the iinished tube. Thecontinued movementl of the drum causes the cam strip 159 toreturnthesleeve 150 to its normal position, when all parts will await the nextaction'o the feed rollers 100 and 101.

It is evident that the mandrel may be of any desired cross section so asto make tubes of different forms. As many sides and angles may be giventhe tube as desired sfo long as no angle is rentrant. The presser leaves142'Will act equally well on the rectangular mandrel 81 (Fig. 19) havingsuction holes 92, as on a round mandrel. i

Having now explained my improvements, what I claim as my invention anddesire to secure by Letters Patent is- 1. In a tube machine, thecombination of a hollow shaft, un air pump suction pipe connectedthereto, n removable mandrel on the end of said shaft provided with anaperture to permit pneumatic clutching of the tube material, a sleeveslidable over the mandrel to remove the nished tube a-nd means toprevent the reverse movement,of the tube.

2. In a tube machine, a mandrel for winding tubes, a shaft to drivethesame, a pair of plvoted leaves adapted to press against the outerside of the tube to insure periect winding, a pivoted arm to control theoperation of the leaves, and a cam mounted on said shaft to actuate saidarm whereby the leaves press against the tube during the finalrevolutions only of the winding.

3. In a tube machine, the combination of a mandrel for winding thetubes, a shear, a pair of feed rolls for conveyng the end of the tubematerial from the shear to the mandrel, an arm on the end of the shaftof one of the rolls, a pawl carried thereby, a ratchet wheel adapted tobe engaged by said pawl, a gear united to said ratchet wheel, said gearand ratchet wheel loosely mounted on said roll shaft, a rack adapted toreciprocate to actuate the rolls, an arm to operate the rack, and meansto ac tuate said arm and rack during the time said mandrel is at rest.

4. In a tube machine, the combination of a mandrel for winding thetubes, a shear, a pair of feed rolls for conveying the end of the tubematerial from the shear and to actuate the mandrel before and betweenthe operations of the rolls and the shear, and means to separate therolls to permit the mandrel to freely pull the tube material throughbetween`the rolls.

5. In a tube machine, the combination of a hollow man` drel, an air pumpconnected thereto and adapted through its operation to cause theadhesion of the tube material to the mandrel, a main shaft for drivingthe various parts of the machine and controlling the action of the airpump, a feeding mechanism for projecting the tube material to themandrel, means mounted on the main shaft for driving the mandrel twoseries of revolutions for each revolution of the shaft, the first seriesoccurri-ng for winding the tube directly after the operation of the feedrolls, a shear operated by said shaft to sever the tube material, meansoperated by said main shaft during the second series ol' revolutions ofthe mandrel to press down the last edge of the tube material, and thendischarge, and means operated by the main shaft to remove the tube afterthe end of the second series yof revolutions.

6. ln a tube machine, the combination of a mai-n driving shaft, a gear,a drum and cams mounted thereon, a mandrel .to wind up the tubes, afeeding mechanism, a shear, means to coat the material with cement,means to press against the tube on the mandrel to insure the best actionof the cement, a sleeve to remove the tube from the mandrel, andconnections between the various parts and the cams, gear and drum on themain shaft, whereby at each revolution of the main shaft the feedingmechanism will project the tube material to the mandi-eL, and stop, themandrel will then partially wind the tube and stop, the shear will severthe material, the mandrel will complete .the winding of the tube andstop, pressing means will engage and disengage the tube during theserevolutions, and the sleeve will push the finished tube 0E the mandrel.

7. In a tube machine, an air pump, a revoluble hollow mandrel, aconnection at one end of the mandrel, a pipe attached to said connectionand connecting toAsaid pump, and a valve in said pipe and a shaft fordriving said mandrel which shaft enters said valve and controls theaction of the air pump.

8. In a tube machine, the combination of a, hollow mandrel, an air pumpsuction pipe connected thereto, said mandrel being provided with airinlets, a sleeve slidable over said mandrel to remove the finished tube,and means to prevent the reverse movement of'the tube.

9. In a tube machine, 'the combination of a wi-nding mandrel, means 'toremove the finished tube from the mandrel, and means to prevent thereverse movement of the tube.

10. In a tube machine, the combination of a winding mandrel, means todrive the same comprising a shaft which makes one complete revolutionduring the winding of a tube, a cam on said shaft, a presser adapted toeng'age the tube during the final winding revolutions, spring foractuating said presser, connecting means between said presser and camwhereby said presser is permitted to operate during such finalrevolutions only.

11. In a tube machine, the combination of an air pump, a hollow Windingmandrel having apertures through which the suction of the air pump mayoperate to hold the tube material rmly on the mandrel, a driving shaft,gears between the driving shaft and mandrel, a pipe extending betweenthe air pump and mandrel, and a valve in said pipe, the end of saiddriving shaft extending into said valve and being bored so as to openand close the passage through said valve.

12. In a tube machine, the combination of a winding mandrel, a mainshaft for driving the various parts of the machine, a feeding mechanismfor projecting the tube material to the mandrel, means mounted on themain shaft for driving the mandrel two series of revolutions for eachrevolution of the shaft, a shear operated by the main shaft after theiirst series of revolution of the winding mandrel, and means operatedafter the second series of revolutions to remove the tube from themandrel.

13. In a tube machine, the combination of a general driving mechanism, amandrel to wind the tubes, a feeding mechanism, a shear, means to coatthe material with cement, means to contact with the material on themandrel to insure the desired action of the cement, means to remove theiinished tube from the mandrel, and connections between the variousparts and the general driving mechanism, whereby at each tube formingperiod the feeding mechanism will project the tube material to themandrel and stop, Vthe mandrel will partially wind the material andstop, the shear will sever the material, the. mandrel will complete thewinding of the tube and the finished tube will be pushed off themandrel.

14. In a tube machine, the combination of a winding mandrel, a feedingmechanism for projecting the tube material to the mandrel at thebeginning of each tube forming period, means for driving the mandrel aplurality of series of revolutions for each tube forming period, ashearoperated after one series of revolutions of the winding mandrel to severthe tube material, and means to remove the tube from the mandrel.

In testimony whereof I have signed my name in the presence of twosubscribing witnesses. e

.TERVIS R. IIARBECK.

Witnesses:

WILIIELMINA Lonnnne, EDWARD N. PAGELsnN.

